Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

How can you tell if a table represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of the corresponding values are the same.

Front

If Mac's noodles cost $5 per box and Zac's cost $4 per box, which is less?

Back

Zac's is less because it costs $4 per box.

Front

What is the cost per apple if 3 apples cost $9?

Back

$3 per apple.

Front

Does the graph represent a proportional relationship if it is a straight line that passes through the origin?

Back

Yes, it represents a proportional relationship.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio of one quantity to another in a proportional relationship.

Front

If y = 2x, what is the constant of proportionality?

Back

The constant of proportionality is 2.

Front

What does it mean if two quantities are not proportional?

Back

It means that the ratio between the two quantities is not constant.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, is this a proportional relationship?

Back

Yes, because the ratio of flour to sugar is constant.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units.